1 .Simple interest at 10% on ` 5,000 is ` 2,500.
The time for which the sum is invested is â€“
4 .Two friends walking at 5 kms/hr and 7 kms/hr
start at the same time from two different
towns 48 km apart towards each other. After
how many hours will they meet each other ?
5 .A sum amounts to ` 1352 in 2 years at 4%
compound interest. The principal is â€“
6 .A, B and C are three points on a circle. The
tangent at C meets BA produced at T. Given
âˆ ATC = 36Â° and âˆ ACT = 48Â°. The angle
subtended by AB at the centre of the circle
will be â€“
7 . If Î± + Î² = 90Â° and Î±: Î² = 2 : 1, then find the
value of sin Î±: sin Î².
9 .A sai lor goes 12 km downstream i n
48 minutes and returns in 1 hour 20 minutes.
The speed of the sailor in still water is â€“
10 .($1\over \sqrt9 -\sqrt8$$1\over \sqrt8 -\sqrt7$ +$1\over \sqrt7 -\sqrt6$$1\over \sqrt6 -\sqrt5$+$1\over \sqrt5 -\sqrt4$) is -